1324400321340 has 36 divisors (see below), whose sum is σ = 4017347641944. Its totient is φ = 353173418976.

The previous prime is 1324400321333. The next prime is 1324400321353. The reversal of 1324400321340 is 431230044231.

1324400321340 is a `hidden beast` number, since 1 + 3 + 2 + 4 + 400 + 3 + 213 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1324400321340² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3678889602 + ... + 3678889961.

It is an arithmetic number, because the mean of its divisors is an integer number (111592990054).

Almost surely, 2^{1324400321340} is an apocalyptic number.

1324400321340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1324400321340 is an abundant number, since it is smaller than the sum of its proper divisors (2692947320604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1324400321340 is a wasteful number, since it uses less digits than its factorization.

1324400321340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7357779578 (or 7357779573 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1324400321340 its reverse (431230044231), we get a palindrome (1755630365571).

The spelling of 1324400321340 in words is "one trillion, three hundred twenty-four billion, four hundred million, three hundred twenty-one thousand, three hundred forty".